drm/amdgpu: use GMC v9 KIQ workaround only for the GFXHUB

The MMHUB is not affected by this.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

@@ -338,9 +338,9 @@ static void gmc_v9_0_flush_gpu_tlb(struct amdgpu_device *adev,
 		struct amdgpu_vmhub *hub = &adev->vmhub[i];
 		u32 tmp = gmc_v9_0_get_invalidate_req(vmid, flush_type);
 
-		if (adev->gfx.kiq.ring.sched.ready &&
-		    (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev)) &&
-		    !adev->in_gpu_reset) {
+		if (i == AMDGPU_GFXHUB && !adev->in_gpu_reset &&
+		    adev->gfx.kiq.ring.sched.ready &&
+		    (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev))) {
 			uint32_t req = hub->vm_inv_eng0_req + eng;
 			uint32_t ack = hub->vm_inv_eng0_ack + eng;